HomeFish encyclopediaRay-finned fishesPerch-like fishSea basses: groupers and fairy bassletsCloudy grouper Cloudy grouper (Epinephelus erythrurus) Scientific name: Epinephelus erythrurus Valenciennes, 1828 The Cloudy grouper (Epinephelus erythrurus) is a brackish-water fish of the family Serranidae. BiologyInhabits areas with muddy or silty-sand bottoms. Commonly trawled. Nothing has been published on its biology. A 16.3 cm SL fish was found to have ripe ova.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameEpinephelus erythrurusFamilySerranidae (Sea basses: groupers and fairy basslets)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length45.0Depth range10–18 m (33–59 ft)EnvironmentMarine; brackish; reef-associated; depth range 10 - 18 mClimateTropicalDistributionIndo-West Pacific: Pakistan, India including Laccadive (Lakshadweep) Islands, Sri Lanka, and through the larger islands of the East Indies and the Gulf of Thailand.Conservation status (IUCN)Data deficient (DD)Threat to humansHarmlessUsesFisheries: minor commercialResilienceMedium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026